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Standard
Vulnerability Identifier

CVE-2026-1580

2026-02-03
Severity Assessment
8.8
HIGH
CVSS v3.x Score
Clinical Analysis (Description)

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-method` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

Vector Sequencing

Attack Parameters

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Impact Consequences

Technical Impact

Unchanged
Scope
High
Confidentiality
High
Integrity
High
Availability
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Classification

CWE-CWE-20

Timeline

Time Line

PUBLICATION
03 Feb 2026
MODIFICATION
04 Feb 2026
FIRST PATCH
21 Apr 2026
Impact Statistics

Key Metrics

CVSS Score
8.8
HIGH
Patches
2
Available
Remediation Protocol

Recommended Solution

No automatic solution found. Check vendor references.
Recommended Actions for Administrators

Immediate Action Plan

1. Inventory

Identify all affected systems in your infrastructure.

2. Assessment

Assess exposure and criticality for your organization.

3. Mitigation

Apply patches or available workarounds.

4. Verification

Test and confirm effectiveness of applied measures.